All the other people suck. It means
your mother is a hooker...seriously...not hard.
Thats what it means. Not stupid or an arsehole...just that yo mamma is
on the game. People use it when somone is a cunt, like most swear words..but thats not what most of them mean.
"Man, apple martin, thats one
fucked up name, and I heard yo mammas a right git?"
"
Fucking right man, have you seen
Vanilla sky?"
"You are a git, yes you, the one reading this, you may not know, but yo mamma is not where you think she is, shes in my friend's bed..."